PHYSIOGRAPHY. 171 



Sassolin. 



1. Before the blow-pipe, alone and with borax, it is infusible. 



2. Analysis. 

 By STROMEYER. 



Alumina 63-1 



Silica 14-5 



Magnesia . 168 



Lime 0-3 



Protoxide of iron 3-9 



Protoxide of manganese ..... 0-5 



Water 0-5 



3. It occurs at Fiskanaes in Greenland, in a mica-slate rock. 



SAPPARE. (See Kyanite.) 



SAPPARITE. 



Crystals, right rectangular prisms. Cleavage perfect, parallel 

 with their lateral planes. Cross-fracture, uneven, to splintery. 

 Lustre, chatoyant. Color blue, very intense. Transparent. 

 Hardness, not sufficient to scratch glass. 

 Powder of a clear greyish-white color. 



1. It comes from Pegu or Ceylon, and is found engaged in a druse of 

 Spinel. 



SARCOLITE. (See Jlnalcime.) 



SASSOLIN. Prismatic Bora cic-Acid. MOHS. 



Loose scaly particles, crystalline grains, (probably six- 

 sided tables) sometimes aggregated in the form of crusts. 



Lustre pearly. Color greyish and yellowish-white. 

 Streak white. Feebly translucent. 



Sp. gr. =1'480. Taste acidulous, afterwards bitter and 

 cooling, lastly sweetish. 



1. It is fusible in the flame of a candle, yielding a glassy globule, 

 which acquires resinous electricity by friction, even without being iso- 

 lated. 



2. Analysis. 



By BERZELIUS. 



Borax . . 25-83 



Oxygen 74-17 



